On my radar ...

•Live coverage of the local elections today by the Guardian's Paul Owen

• Writing for Comment is free, Norman McNamara says he would sign up to a Sussex police scheme to fit dementia patients with GPS tracking devices. McNamara, who has dementia, says:

For those living with people with dementia, the thought of losing them – knowing they could quite easily cross a road and be seriously injured, or catch a train to goodness knows where – is absolutely terrifying. Which is why I think most carers will welcome this proposal. All we are talking about is a new way of keeping people safe and helping them to live as normal a life as possible: who wouldn't want that for their loved ones?

• The BBC reports on a new internet service which uses online dating techniques to help disabled people find the perfect carer. Its creator is 29-year-old Russell Smith, a former special needs teacher who has muscular dystrophy.

• Claire Turner, from the Joseph Rowntree Foundation, writes that an intergenerational approach is only way to prepare for an ageing population. The Guardian's first Ageing Population event, which will bring together different professionals to explore the topic, takes place this evening.

• The Financial Times reports that more Britons are working less than they want to. Britain's "underemployment rate" is 9.9%, according to a new index that takes account of the swelling number of people who are in work but scraping by on fewer hours than they want, writes Sarah O'Connor.

One of the biggest barriers is the way that buy-to-let mortgage lenders insist on assured shortholds, giving landlords no choice but to offer six or 12-month tenancies even where they can see the benefits of having longer-term more secure tenants. However, another is landlord attitudes. While landlord organisations have not rejected Shelter's idea out of hand even the most sympathetic have doubts about how it would work in practice. The least sympathetic will see restricting rent increases to CPI inflation as a form of rent control and complain that they will not have enough remedies if things go wrong...

This is perhaps where housing associations - and institutional investors - could take a lead. The funding of their schemes should mean they are free from the restrictions imposed by buy-to-let lenders and they ought to welcome the reduction in voids and management costs that should come with longer-term tenancies. However, are their new-build schemes more likely to be aimed at young professionals rather than families with children?